Q: What are the prime factors of the number 4,704,920?

 A: 2, 5, 11, 17, 37

Why are those the prime factors of the number 4,704,920?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 4,704,920

4,704,920
Factor Arrows
22,352,460
Factor Arrows
21,176,230
Factor Arrows
2588,115
Factor Arrows
5117,623
Factor Arrows
1110,693
Factor Arrows
17629
Factor Arrows
1737

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 11, 17, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 11 x 17 x 17 x 37 = 4,704,920

This can also be written as 23 x 51 x 111 x 172 x 371 = 4,704,920

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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